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Finding the Fourth Proportional to 70,839.03, 97,759.08 and 39,007.23

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Solution

The fourth proportional to 70,839.03, 97,759.08 and 39,007.23 is: 53,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,839.03 : 97,759.08 = 39,007.23 : x
  2. Step 2: Convert to fraction form
    70,839.03/97,759.08 = 39,007.23/x
  3. Step 3: Cross multiply
    70,839.03x = 97,759.08 × 39,007.23
  4. Step 4: Simplify right side
    70,839.03x = 3,813,310,918.15
  5. Step 5: Solve for x
    x = 3,813,310,918.15/70,839.03
  6. Step 6: Final answer
    x = 53,830.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.